moving to milwaukee from india-help needed

hello ladies
I am moving to milwaukee in 3 weeks with my husband and 12 months old son and need some advice on what to bring for my son. this move is going to be for 2-4 months max and after that we will be moving to chicago. we will be staying at a hotel(dh is a consultant and is trying hard to push for a short term lease apt from his company though)

What winter clothing is needed for baby until we get better ones there?
medicines?
anything else that I should definitely bring?

also he takes cerelac at night, is that available there? or should I just get supplies to last a cpl of months?

He is also due for his mmr vaccine in 6 weeks, any issues in getting that done in the usa?

u get something similar to ceralac but still u bring your own stuff. reg the medicine if u r giving anything in specific stock them up for your entire stay. reg the clothes get few winter clothes rest u can buy them here after your arrival.